Chair seat



FIG. 1 is a perspective view of a chair seat showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view thereof showing the chair seat mounted on achair support.

The broken lines shown in the drawings depict environmental featuresthat form no part of the claimed design.

CLAIM The ornamental design for a chair seat, as shown and described.